Kamie Kitmitto

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Satellite Image Data Service
Providing New Satellite Imagery and Geodata
Services

Kamie Kitmitto Gail Millin
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Presentation Outline

• Introduction of SIDS
• Variety of Satellite Data Available Key
  achievements
• Who is using SIDS?
• Current Data Acquisition and Enhancements
• Development of complex processing chain
• Value addition
• 5 Year Plan for Future Development

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Current Service

• SIDS main activities can be summarised as
• Data Provision for Satellite and related data
• Geospatial support service
• Educational Materials
• Research and Development particularly in new data
  delivery infrastructure
• Dissemination and outreach

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Key Achievements

• Satellite data of high quality excellent
  positional accuracy
• Excellent for research purposes and saves time on
  pre-processing
• Interoperable via OGC WMS Image Streaming
• Enables integration of data with other datasets
  e.g. Ordnance Survey supplied by EDINA
• Development of advanced online image processing
  course for a variety of specialised software's
• Widens the use base of satellite data
• Addresses the growing demand (after the release
  of Google Earth) to use satellite data due to
  higher awareness of this resource in less
  traditional disciplines.
• Spatial coverage of optical data for the whole of
  the UK
• The Only UK national body that acquires data for
  the UK in a systematic and consistent way,
  providing an archive of imagery for the nation.

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End of subscription fees

• Currently available to academics only attending
  institutes that have subscribed and signed a
  licensing agreement.
• 1st August any institute that has signed a
  licensing agreement will have FULL ACCESS to the
  data and services
• Landsat 5 (late 80s early 90s) Landsat 7
  (1999 2000)
• Mediterranean data (Landsat imagery only)
• ERS 1 2 (1995 1999)
• SPOT (mid 1990s)
• Raw Satellite Data Archive of the above
• Landmap 25m DEM (derived from ERS) and Projected
  SRTM
• ENVISAT ASAR AP, IM WS (2005 2006)

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Data 1 - Landsat 4, 5 7
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Data 2 - SPOT
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Data 3 - ERS 1, ERS 2 ENVISAT
Multi-Difference Image Mode
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Data 4 - DEM KGPS
25m DEM of UK and Republic of Ireland
KGPS UK Survey
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Learning Materials

• Modules include
• Information Extraction
• Spectral Mapping
• Geo-referencing
• Structural Mapping
• Vegetation Mapping
• Land Cover Classification
• Meteorology
• Sea-Surface Temperature Mapping
• Coastal Mapping
• Integration with GIS
• Mineral Exploitation

• Adapted for
• RSI ENVI
• ERDAS Imagine
• PCI
• Idrisi Kilimanjaro

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Who Uses SIDS?
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Landmap Website

• Analysis period 01/12/05 31/12/06
• Highly visited site
• Total Hits 2,935,237
• Total Visitors 163,890
• Total Downloads 165 GB
• Widely visited with 61,115 unique IP addresses
• Highly used on a daily basis average daily
  figures
• Hits 7,412
• Page Views 2,651
• Visitors 413
• Downloads 428 MB
• Valuable information resource
• FAQs, tutorials, courses, papers, image of the
  month.

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Current Data Acquisition Enhancements
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RADAR Acquisition

• Facilitate ASAR availability to UK academia
• Advanced SAR imagery valuable due to
• Different polarization combinations
• Range of incidence angles
• Different modes of operation
• SAR imagery can be obtained
• During periods of cloud cover
• At a much higher temporal frequency then optical
  data
• At night due to ENVISAT and ERS being active
  sensors

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Advanced Synthetic Aperture Radar
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Use Case Materials

• Three MSc Projects with University of Nottingham
• Group 1 Monitoring temporal changes in a forest
  ecosystem to estimate terrestrial carbon fluxes
  using optical/RADAR imagery
• Group 2 Evaluate the capabilities of ASAR wide
  swath mode data versus ASAR image mode data for
  land cover classification, with a focus on the
  Peak District.
• Group 3 Urban Remote Sensing - A Comparison of
  Radar and Optical Imagery

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SIDS Spatial Data Infrastructure
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Viewing and Accessing Data Archive

• Three Methods of Viewing
• Image Streaming via Landmap Image Streaming
  Viewer OR via free downloadable heavy clients
  such as ESRI ArcGIS Explorer or Cadcorp
• Web Mapping Service (WMS) via OGC Landmap Viewer
  or OGC Compliant software
• Screenshots of the Data provided in Point Click
  Download Service
• Two Methods of Downloading Data
• Landmap Point and Click (via drop down menus)
  service
• Landmap Web Coverage Service (WCS) (still in
  development)

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View Landmap Image Streaming Client
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View Heavy Client e.g. ArcGIS Explorer
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View Download Landmap OGC Client (WMS/WCS)
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Metadata Provision
At the service level through IESR! Metadata
reviewed and updated July 2006.
At the dataset level through the download of XML
files from the interactive mapping
service. Metadata currently being reviewed and
updated.

• We are looking into the creation of an OGC
  Catalogue Service which allows searches and
  access of XML and data files at the dataset
  level.
• Highly beneficial for users to identify relevant
  dataset.

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Further Data Infrastructure Developments

• GEMS II - In 2007 funds have been allocated to
  further Grid Enable MIMAS Services part II will
  focus on the SIDS archive
• Provide a case study example of urban to rural
  change detection at the national scale
• Utilising the powerful processing ability of grid
  technologies
• GE - Creation of KML files in 2007 to bring the
  SIDS archive into the Google Earth environment
• Advanced and easy to use visualisation
  capabilities
• Allow integration of SIDS KML with users own KML
  files
• The KML file will be registered to Google to
  enhance data discovery via GE
• KML will be available for download from Landmap
  website

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Future Developments
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Future Developments

• New Data Acquisition (75,000 per annum to be
  spent for next 5 years)
• 50,000 optical data DMC, Landsat, MERIS
• 25,000 radar data ASAR
• Outreach and Training (Up to 1000 to develop 5
  use case scenarios)
• Subcontracting the creation of use cases for
• Application of radar data
• Application of SIDS WMS and WCS
• Further suggestions are welcome!
• SIDS continue SDI developments and delivery of
  training

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How to Register to use SIDS!

• Institutes must sign a licensing agreement form
  to use the service after July 31st 2007 93
  sites already licensed
• Further information available at
  http//landmap.mimas.ac.uk
• Users require an Athens Username and Password
• Allows access to download all SIDS datasets
• Access to the online learning materials e.g.
  Image Processing Course

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Thanks for Listening ?
Enquiries spatial_at_mimas.ac.uk Website
http//landmap.mimas.ac.uk